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Term 1: Term 2:

(=>
    (instance ?I ResistorElement)
    (exists (?S)
        (and
            (subclass ?S InsulatorSubstance)
            (material ?S ?I))))
engineering.kif 855-860
(subclass InsulatorSubstance Substance) engineering.kif 1286-1286 Insulator substance is a subclass of substance


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